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Old 10-27-2006, 11:10 PM   #8
swb85
On a budget like Fred Sanford
 
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Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
Re: need opinions (quick) on 383 build

Quote:
Originally Posted by piecesparts View Post
The ONE THING that is very important in putting a 383 together is the clearancing of the cam and the crankshaft. If you go too nasty on the cam, then you get into the crank's space. I would recommend that you get a good shop to do the lower end, so that they can manage the spacing as they build it. Stand right on to of them and get the experience there.
I'm sticking with a flat tappet camshaft, so some clearancing will need done but not as much as if I went hyd roller. Cam profile won't get TOO nasty.....not enough to have excessive clearance issues. I checked around with some machine shops, told them my plans and they were very friendly and answered my questions/concerns. Having them do all the machining work and put the shortblock together & balance it is going to run right at $600. I plan on watching everything that's done so I can do the next one!

Quote:
Originally Posted by piecesparts View Post
What have you done with LS-1s? The one that I have came out of a wrecked 2000 Firebird, with a 4l60E tranny. I am working on an install into the 68 Chevy truck with a set of 3.73 gears. I already have the adapter plates for the motor mounts and some of the throttle control cables. I would like to change the cam on this motor before the install is completed, to upgrade the HP a little. I saw a motor in a 64 Belair a few weeks ago that the owner is getting 24 MPG and with a small nitrous shot he was running with his late model Vette.
I've got an LS1/4l60e in my camaro as well as my tahoe. I have tuning software (HP Tuners VCM suite) that allows me to scan/modify nearly every parameter in the car's pcm. It's a sharp learning curve, but after a couple years I've gotten a good handle on it. I actually tune some local guys' LS1's that have done aftermarket heads/cam/nitrous/converter. Haven't done a forced induction car yet though....that's a whole different ballgame.
Right now my camaro (in the video I posted) is right around 400rwhp/400rwtq through a 3600rpm stall converter and 3.23 gears. Haven't been to the track yet, still haven't got slicks on (1st & part of 2nd gear is useless on street tires). The tahoe is stock internals/boltons plus my custom tune. Shoot me a pm with any info you want. Lemme know your power goals & I'll tell ya exactly what parts will get you there (cam profile/compression ratios & all). Kinda funny how I learned things backwards.....figured the high-tech LS1 out first and now starting to learn the gen I sbc!!
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread
'98 Camaro z28: 370ci twin turbo 370ci build
'01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD
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